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bmelyk Group TitleBest ResponseYou've already chosen the best response.1
The height at time t (s) of a weight, oscillating up and down at the end of a spring is given below. s(t) = 400 + 90sin(t)
 2 years ago

bmelyk Group TitleBest ResponseYou've already chosen the best response.1
a) Find the velocity at t = π/3 s. b) Find the acceleration at t = π/3 s
 2 years ago

bmelyk Group TitleBest ResponseYou've already chosen the best response.1
so for a) my equation i had was 90sin(t) and b) 90cos(t)
 2 years ago

bmelyk Group TitleBest ResponseYou've already chosen the best response.1
wondering if those are right.
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
for velocity, u differentiate once, for acceleration, u differentiate twice.
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
first derivative of s(t) = 400 + 90sin(t) is ??
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
yes, thats your velocity
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
and acceleration ?
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
thats correct also :)
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
now just put t values
 2 years ago

bmelyk Group TitleBest ResponseYou've already chosen the best response.1
so the answers are: A) 45 b) 45 sqrt3 ???
 2 years ago

bmelyk Group TitleBest ResponseYou've already chosen the best response.1
woo hoooo. : )
 2 years ago
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